最近测试Hadoop和Hbase集群,一次断电之后,Hbase无法正常启动,经过一系列配置之后,终于使得Hbase重新启动,但是却出现了新的问题,新建表时,总是提示Table already exists,很是郁闷,不知道什么原因,虽说以前建过同名的表,可是HDFS上和Hbase相关的东西都已经删除了。最后通过Google找到了解决方案,有可能是zookeeper的原因导...
ERROR 1050 (42S01): Table xxx already exists 今天遇到一个关于MySQL求助的问题,修改表结构时遇到“ERROR 1050 (42S01): table xxx already exits" mysql> ALTER TABLE DAY_BOOK_REPORTADD UNIT_PRICE_PCSDOUBLE(12,2) DEFAULT NULL; ERROR 1050 (42S01): TABLE 'INVGSP/#SQL-IB379' ALREADY EXISTS m...
今天遇到一个关于MySQL求助的问题,修改表结构时遇到“ERROR 1050 (42S01): table xxx already exits" mysql> ALTER TABLE DAY_BOOK_REPORT ADD UNIT_PRICE_PCS DOUBLE(12,2) DEFAULT NULL; ERROR 1050 (42S01): TABLE 'INVGSP/#SQL-IB379' ALREADY EXISTS mysql> 检查了后,发现表DAY_BOOK_REPORT确实不存...
使用JDBC执行create table as语句报错 ERROR: relation "xx" already exists 问题分析:JDBC调用preparedStatement.getParameterMetaData()时会发送P报文,该报文会在数据库中创建表,导致execute执行时报表已存在。 处理方法:使用preparedStatement时,建议将CREATE TABLE AS拆开执行或者使用resultSet.getMetaData()。
CREATE TABLE IF NOT EXISTS public.new_table AS TABLE public.src_table; NOTICE: relation "new_table" already exists, skipping 场景3:仅复制表结构,不同步数据。 CREATE TABLE public.new_table AS TABLE public.src_table WITH NO DATA; 场景4:复制新表并同步select查询的数据。 CREATE TABLE public.new...
impdp有一个参数选项TABLE_EXISTS_ACTION,help=y的解释为: Action to take if imported object already exists. Valid keywords are: APPEND, REPLACE, [SKIP] and TRUNCATE. 官方文档有句话: “Only objects created by the Import will be remapped. In particular, the tablespaces for preexisting tables will...
b.dmp table_exists_action=SKIP schemas=lhr Processing object type _EXPORT/USER ORA-31684: Object type USER:"LHR" already exists Processingobject type SCHEMA_EXPORT/SYSTEM_GRANT Processing object type SCHEMA_EXPORT/ROLE_GRANT Processing object type SCHEMA_EXPORT/DEFAULT_ROLE Processing object type ...
CREATE TABLE ##test ( a INT, b INT ); INSERT INTO ##test VALUES (1, 1); -- Obtain object ID for temp table ##test SELECT OBJECT_ID('tempdb.dbo.##test') AS 'Object ID'; Here's the result set. Output Copy 1253579504 Obtain global temp table name for a given object ID ...
begin; create table tbl (a int not null, b text not null); call set_table_property('tbl', 'distribution_key', 'a'); commit; begin; create table tbl (a int not null, b text not null); call set_table_property('tbl', 'distribution_key', 'a,b'); commit; begin; create table ...
IF EXISTS Applies to: SQL Server ( SQL Server 2016 (13.x) throughcurrent version). Conditionally drops the table only if it already exists. schema_name Is the name of the schema to which the table belongs. table_name Is the name of the table to be removed. ...